Anup Patel f520256d03 lib: sbi: Allow relaxed MMIO writes in device ipi_send() callback ...

Currently, we have a smp_wmb() between atomic_raw_set_bit() and
ipi_send() device callback whereas the MMIO writes done by the
device ipi_send() callback will also include a barrier.

We can avoid unnecessary/redundant barriers described above by
allowing relaxed MMIO writes in device ipi_send() callback. To
achieve this, we simply use  wmb() instead of smp_wmb() before
calling device ipi_send().

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reported-by: Bo Gan <ganboing@gmail.com>

2023-11-26 18:45:06 +05:30

..

Kconfig

lib: sbi: Implement SBI CPPC extension

2023-04-07 09:36:01 +05:30

objects.mk

lib: sbi: Introduce simple heap allocator

2023-06-05 15:46:09 +05:30

riscv_asm.c

lib: sbi: Add support for smcntrpmf

2023-08-18 14:50:38 +05:30

riscv_atomic.c

lib: sbi: fix atomic_add_return

2021-04-09 18:51:02 +05:30

riscv_hardfp.S

lib: Move sbi core library to lib/sbi

2019-06-19 09:48:51 +05:30

riscv_locks.c

lib: sbi: Have spinlock checks return bool

2021-05-14 17:05:20 +05:30

sbi_bitmap.c

lib: Simple bitmap library

2020-03-11 15:29:45 +05:30

sbi_bitops.c

lib: fix compilation when strings.h is included

2022-02-04 11:04:19 +05:30

sbi_console.c

lib: sbi: Make console_puts/console_putc interchangeable

2023-11-17 16:03:21 +05:30

sbi_cppc.c

lib: sbi: Implement SBI CPPC extension

2023-04-07 09:36:01 +05:30

sbi_domain.c

lib: sbi: Add regions merging when sanitizing domain region

2023-11-16 21:03:26 +05:30

sbi_ecall_base.c

lib: sbi: Introduce register_extensions extension callback

2023-05-21 16:27:38 +05:30

sbi_ecall_cppc.c

lib: sbi: Remove 0/1 probe implementations

2023-05-21 16:54:00 +05:30

sbi_ecall_dbcn.c

lib: sbi: Map/Unmap debug console shared memory buffers

2023-07-13 12:44:22 +05:30

sbi_ecall_exts.carray

lib: sbi_ecall: Generate extensions list with carray

2022-10-23 11:00:30 +05:30

sbi_ecall_hsm.c

lib: sbi: Introduce register_extensions extension callback

2023-05-21 16:27:38 +05:30

sbi_ecall_ipi.c

lib: sbi: Introduce register_extensions extension callback

2023-05-21 16:27:38 +05:30

sbi_ecall_legacy.c

lib: sbi: Introduce register_extensions extension callback

2023-05-21 16:27:38 +05:30

sbi_ecall_pmu.c

lib: sbi: pmu: Remove unnecessary probe function

2023-05-21 16:30:29 +05:30

sbi_ecall_rfence.c

lib: sbi: Introduce register_extensions extension callback

2023-05-21 16:27:38 +05:30

sbi_ecall_srst.c

lib: sbi: Remove 0/1 probe implementations

2023-05-21 16:54:00 +05:30

sbi_ecall_susp.c

lib: sbi: Remove 0/1 probe implementations

2023-05-21 16:54:00 +05:30

sbi_ecall_time.c

lib: sbi: Introduce register_extensions extension callback

2023-05-21 16:27:38 +05:30

sbi_ecall_vendor.c

lib: sbi: Only register available extensions

2023-05-21 16:53:02 +05:30

sbi_ecall.c

lib: sbi: Introduce register_extensions extension callback

2023-05-21 16:27:38 +05:30

sbi_emulate_csr.c

lib: sbi_pmu: remove mhpm_count field in hart feature

2023-08-22 13:26:09 +05:30

sbi_expected_trap.S

lib: sbi: Fix typo in comment

2022-10-23 10:19:28 +05:30

sbi_fifo.c

treewide: Replace TRUE/FALSE with true/false

2023-01-06 17:26:35 +05:30

sbi_hart.c

lib: sbi: Fix PMP granularity handling in sbi_hart_map_saddr()

2023-11-22 20:42:24 +05:30

sbi_heap.c

lib: sbi: Introduce simple heap allocator

2023-06-05 15:46:09 +05:30

sbi_hfence.S

lib: sbi: Fix GPA passed to __sbi_hfence_gvma_xyz() functions

2021-11-02 16:02:08 +05:30

sbi_hsm.c

lib: sbi: Remove sbi_scratch_last_hartid() macro

2023-09-24 11:41:54 +05:30

sbi_illegal_insn.c

lib: sbi: Remove unnecessary semicolon

2023-05-11 12:31:34 +05:30

sbi_init.c

lib: sbi: Remove sbi_scratch_last_hartid() macro

2023-09-24 11:41:54 +05:30

sbi_ipi.c

lib: sbi: Allow relaxed MMIO writes in device ipi_send() callback

2023-11-26 18:45:06 +05:30

sbi_irqchip.c

lib: sbi: Add a simple external interrupt handling framework

2022-02-28 09:43:12 +05:30

sbi_math.c

lib: Create a separate math helper function file

2020-05-10 09:59:24 +05:30

sbi_misaligned_ldst.c

lib: sbi_misaligned_ldst: Fix handling of C.SWSP and C.SDSP

2023-10-09 13:53:20 +05:30

sbi_platform.c

lib: sbi: Remove sbi_platform_hart_index/invalid() functions

2023-09-24 11:39:30 +05:30

sbi_pmu.c

lib: sbi_pmu: avoid buffer overflow

2023-11-22 20:55:22 +05:30

sbi_scratch.c

lib: sbi: Remove sbi_scratch_last_hartid() macro

2023-09-24 11:41:54 +05:30

sbi_string.c

lib: sbi: Fix sbi_strnlen wrong count decrement

2022-09-13 17:17:10 +05:30

sbi_system.c

include: sbi: Remove sbi_hartmask_for_each_hart() macro

2023-09-24 11:48:21 +05:30

sbi_timer.c

lib: sbi: Add Zicntr as a HART ISA extension

2023-07-09 11:06:24 +05:30

sbi_tlb.c

lib: sbi: Correctly limit flushes to a single ASID/VMID

2023-11-16 09:21:47 +05:30

sbi_trap.c

lib: sbi: Remove unnecessary semicolon

2023-05-11 12:31:34 +05:30

sbi_unpriv.c

lib: sbi: Remove unnecessary semicolon

2023-05-11 12:31:34 +05:30